{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machine or equipment", "process characterization", "application", "material", "process parameter"], "input": "A maximum heat duty of 2.78 kW and a maximum overall heat transfer coefficient of 1000 W/m2K were achieved during the experiments ."}
{"machine or equipment": [], "process characterization": [], "application": [], "material": [], "process parameter": []}